ROHM U.S.A., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11C STATIC STORES 3148
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
H03K PULSE TECHNIQUE 2129
 
  
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 170

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5940325 Low voltage one transistor flash EEPROM cell using fowler-nordheim programming and eraseNov 17, 97Aug 17, 99[H01L, G11C]
5793248 Voltage controlled variable current referenceJul 31, 96Aug 11, 98[H03K]
5689459 Low voltage one transistor flash EEPROM cell using Fowler-Nordheim programming and eraseNov 05, 96Nov 18, 97[H01L]
5615147 Low voltage one transistor flash EEPROM cell using Fowler-Nordheim programming and eraseSep 27, 95Mar 25, 97[G11C]
5587947 Low voltage one transistor flash EEPROM cell using Fowler-Nordheim programming and eraseSep 27, 95Dec 24, 96[G11C]
5465062 Transition detector circuitFeb 03, 94Nov 07, 95[H03K, H03H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5781051 Power-up detector for low power systemsExpiredJul 26, 96Jul 14, 98[H03L]
5687120 Low voltage one transistor flash eeprom cell using fowler-nordheim programming and eraseExpiredSep 27, 95Nov 11, 97[G11C]
5097444 Tunnel EEPROM with overerase protectionExpiredNov 29, 89Mar 17, 92[G11C]
5039885 Single function programmable logic array circuitExpiredApr 25, 86Aug 13, 91[H03K, G06F]
4866432 Field programmable matrix circuit for EEPROM logic cellsExpiredMay 26, 88Sep 12, 89[H04Q, G06F]
4812675 Security element circuit for programmable logic arrayExpiredApr 15, 87Mar 14, 89[H03K, G06F]
4783606 Programming circuit for programmable logic array I/O cellExpiredApr 14, 87Nov 08, 88[H03K]
4769340 Method for making electrically programmable memory device by doping the floating gate by implantExpiredApr 17, 86Sep 06, 88[H01L]
4667312 Charge pump method and apparatusExpiredNov 28, 83May 19, 87[G11C]

Top Inventors for This Owner

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